Final answer:
The VEP measure does not provide the specific percentage of eligible voters who participated in the 2004 presidential election, but it mentions the range of voter turnout in the United States in recent years and its ranking compared to other countries.
Step-by-step explanation:
According to the VEP (Voting Eligible Population) measure, the percentage of eligible voters who participated in the 2004 presidential election was not provided in the given information.
However, it mentions that voter turnout in the United States has ranged from a low of 52 percent to a high of 66 percent in the 2020 presidential election within the last 20 years. It also states that America has low voter turnout compared to other democratic countries, ranking 30th out of 35 OECD countries.